Advent calendar 2017

Archive

Show me a random puzzle

Tags

crosswords cubics sum to infinity combinatorics prime numbers indices star numbers balancing cryptic crossnumbers books integration volume polynomials odd numbers doubling algebra cube numbers rectangles geometric mean shapes chocolate averages numbers trigonometry remainders binary geometry probability dice functions wordplay multiplaction squares taxicab geometry planes coins consecutive integers hexagons tiling rugby sums dominos floors mean symmetry median graphs matrices irreducible numbers chalkdust crossnumber chess fractions number tangents triangle numbers clocks dates crossnumbers products folding tube maps addition sets complex numbers neighbours perfect numbers regular shapes menace quadratics gerrymandering parabolas people maths means square grids pentagons logic geometric means arrows probabilty square numbers albgebra sequences christmas partitions medians cards colouring consecutive numbers 3d shapes surds sport square roots ave xor factors digital clocks grids triangles dodecagons lines elections division squares range coordinates differentiation calculus perimeter multiplication 2d shapes proportion axes scales area routes palindromes lists money the only crossnumber pascal's triangle powers ellipses time multiples bases decahedra integers polygons cryptic clues expansions unit fractions digits prime factors shape determinants quadrilaterals games even numbers angles speed advent circles factorials spheres percentages tournaments digital products